Abstract
This paper describes our current efforts towards creating cooperative analog/digital signal processing (CADSP) systems for auditory sensor and signal processing applications. We address resolution issues that affect the choice of signal processing algorithms arriving from an analog sensor. We discuss current analog circuit approaches towards the front-end signal processing by reviewing major programmable analog building blocks and showing how they can be interconnected to create a complete system. We also discuss our current analog signal processing front-end system for speech recognition. Experimental data is presented from circuits fabricated using a 0.5 /spl mu/m nwell CMOS process available through MOSIS.
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